package com.xxx.test2;

import com.xxx.test1.Person;
import com.xxx.test1.Student;
 

public class TestPerson  { 
	
	void change(Person s){
		s.talk();
		 		
	}	 
	
	public static void main(String[] args) {
		 
		Person s  = new Student();
		
		TestPerson t = new TestPerson();
		
		t.change(s);
	  
		 
	}
}
